The FVIIIr:Ag-positive vessels in the placenta of the 40-42-week-old fetus were clustered in the basal plate of the chorionic villi. The small and large artery in the labyrinth was thought to be supplied by arteriovenous anastomoses. Immunoreaction to IgA was seen in the chorionic villi, but not in the decidua basalis. Occasionally, the vascular network in the decidua basalis was connected to the FVIIIr:Ag-positive vessels in the chorionic villi. The decidua basalis was supplied by a number of chorionic villous arteries and veins. The small and large artery in the labyrinth was considered to be supplied by a giant chorionic villous artery. In the labyrinth, few were seen between the chorionic plate and the junctional zone. In the 40-42-week group, the FVIIIr:Ag-positive vessels were rare, and more diffusely distributed in all layers. In the 34-36-week group, the distribution of FVIIIr:Ag-positive vessels was similar, but they were better developed in the chorionic villi. Most of them ran from the surface of the chorionic villi toward the maternal decidua in the basal plate of the placenta. In the placenta of the 20-24-week-old fetus, FVIIIr:Ag-positive vessels were seen in all layers but they became gradually more prominent in the chorionic villi and intermediate zone with progressing gestation. The placentas of three groups of fetuses, between 20-24 weeks, 34-36 weeks and 40-42 weeks of gestation, were examined by the immunohistochemical technique using a monoclonal antibody raised against factor VIII-related antigen (FVIIIr:Ag) and rabbit anti-human IgA serum. This study was carried out to observe the pattern of the distribution of blood vessels in the placenta of the pre-term human fetus and to determine the changes which occur in the pregnant state at three different gestational ages. ROOT Crack Codecanyon Games.Severe disruption of vascular network in pre-term human placenta. Crack DVD Photo Slideshow Pro 7.96-serial InclĬRACK DVD Photo Slideshow Pro 7.96-serial Incl
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